Sink strainer



Jan. 30, 1940. E M REEDY 2,188,613

SINK STRAINER Filed April 16, 1938 2 Sheets-Sheet 1 Jan. 30, 1940. REEDY 2,188,613

SINK STRAINER Filed April 1a, 1938 2 Sheets-Sheet 2 4/ J Q 1(7 2 30 17 L LZ j 0 A Emma 1 f2e4y Patented Jan. 30, 1940 7' UNITED STATES aim PATENT OFFICE to Mueller Decatur Illinois 111-, a corporation of Application April 10, 19:8, Serial No. 2oa,551' 1 Claim. (01. 4-287) This invention relates to a drain fitting and is particularly designed for use with sinks and the like.

It has for its object to provide a fitting which may be readily adapted to existing types of sinks;

in which a strainer is provided; together with a valve for closing the valve opening, said strainer being so associated with the valve that while the valve is capable of independent movement, both the valve and strainer may be simultaneously removed from the. fitting when the valve is lifted.

Provision is made, further, whereby the valve may be shifted from closed to open position and there held to permit free drainage, the construction 5 and arrangement of the parts being such that the water-way to the drain pipe is not unduly reduced. Finally, the parts are so disposed and spaced one from the other that collection of grease or refuse between the parts will be elimi- 20 nated and the members of the assembly will be cleared and flushed under water-flow.

One embodiment of the invention is shown in the accompanying drawings, in which:

Figure 1 is a vertical section through the drain 25 fitting,

Figure 2 is a plan view of the drain fitting,

Figure '3 is a plan view taken on line 33 of Figure 1,

Figure 4 is a vertical section through a modified 30 drain fitting structure,

Figure 5 is a bottom view of the modified drain fitting taken on line 5-5 of Figure 4,

Figure 6 is a vertical section through the drain fitting of Figure 1 showing "a removable spider 35 plate in position,

Figure 7 is a bottom view of the structure shown in Figure 6 taken on line 1-1,

Figure 8 is a plan view of the spider plate, and

Figure 9 is a vertical cross-section of the spider 40 plate taken on line 3-9.

The invention as here illustrated comprises the body portion l 0 provided with an enlarged strain- 'er-receiving inlet section and a relatively small valve-receiving outlet section. The inlet section 45 engages with an opening in the sink or other receptacle, illustrated in dotted lines in Figure l. The body portion Iii is threaded at its upper portion, on which is mounted the threaded collar l3, and between which and the bottom of the sink 50 or receptacle is the gasket ll, so that the body portion can be mounted securely on the sink in water-tight relation thereto, a fiange ii being provided to engage the upper side of the sink.

The relatively small outlet section of the body 55 portion I0 is provided with the outlet [2 of smaller juncture-of the strainer and valve-receiving sec- 10 tions of the fitting.

Across the drain opening of the outlet portion l2, below the valve seat I5, is provided a bar i'I which may be and preferably is diametrically placed and preferably formed integral with 'the body portion. 7

Mounted for vertical movement in the upper part of the portion III is a strainer I 8 having an outturned rim portion I 3 which fits closely and in a substantially water-tight relation with a suitable groove in the top of the portion l0 so as to form a smooth drainage surface from the fiange H to the strainer. The said strainer I8 is provided with drainage openings in its bottom and also in its side wall, the cylindrical side wall of the strainer l8 being spaced from the inner wall of the fitting so as to give water-way from the side openings. Centrally of the strainer is provided a valve stem bearing portion or sleeve 2| which extends slightly below the bottom of the strainer so as to maintain the valve spaced always from the bottom of the strainer and prevent any obstruction or closing of the ports in the bottom of the strainer by the valve in any position of the parts.

Mounted in the bearing 2| is the valve stem 22, which is freely slidable in the bearing and has a suitable operating handle threaded to its upper end. Secured to the valve stem 22 is the valve member 23 adapted to engage the valve seat IS in the fitting i0 and close the outflow port, as shown in dotted lines in Figure 1.

On its underside the valve 23 is provided with spaced, flat-bottomed lugs 24 of streamlined form in cross-section so that free flow is permitted and catching of waste eliminated, which, when the valve is raised, turned, and falls to closed position, will straddle the bar l1 and allow closing of the valve.

When it is desired to open the valve 23 and maintain it in open position, it may be lifted by means of the stem 22 and rotated until the lugs 24 are above the bar I1, and then'lowered so that the lugs 24 resting on the bar I! will support the valve in the open position shown in full lines ure 1 are removed for cleaning it is possible that and pipe.

With this construction the water-way to the drainage outlet is, not materially interfered with.

The bar l1 and the spaced lugs 24 are so proportioned as to not obstruct the water-way; the spaced lugs giving clearance and yet holding the valve and strainer in upright position and preventing tilting; and, further, the strainer and valve are always spaced one from the other so that there will be always tree fiow between them, and no accumulation of grease or other waste can occur. 1

In the modified drain fitting structure shown in Figure 4 a rod 30 may be and-preferably is cast integral within the lower end of outlet l2. Rod 30 is preferably disposed diametrically across the drain opening and at right angles to bar II. The rod is also positioned far enough below bar I! so that when the valve element 23 is moved to closed position, i. e., when lugs 24 straddle bar ii, the lugs extending below the bar I! will not engage the rod 30. This disposition of rod 30 will in no way interfere with-the free now through the outlet because any small debris that might pass the strainer would easily pass through the relatively unobstructed outlet passage.

When the strainer and valve assembly of Figobjects such as knives and forks might accidentally fall vertically'into the outlet and past the bar II. This likelihood might exist in strainers designed to handle large capacities. However, the rod 30 disposed crosswise with respect to bar I! will form an obstruction that will prohibit the object falling irretrievably into the outlet.

In a like manner the spider plate 3| shown in Figures 6 through 9 will prevent such dropping of objects into the outlet. The spider plate there shown is adapted to be positioned between the bottom of the outlet portion I 2 and the flanged end 32 of the drain pipe. It is held in this position when the threaded collar I6 is drawn tight.

The spider plate may have any number of arms 33 disposed in such a manner as to provide 55 a relatively unobstructed drain outlet so that debris may easily pass yet the openings between the arms will prevent the passage 01 such larger objects as above explained. In Figures 6 through 9 a spider plate having three arms has been shown.- However a plate having one cross arm and positioned at right angles to bar .i'l might beused. Also in larger drain outlets more than three arms may be necessary to reduce the area between the arms to such size as to prevent the passage of large objects therebetween.

Inlllgureiltheplateisshownashavinga metallic core 34 with a thin gasket washer 35 and 38 on opposite sides. In this manner an eflective gasketed seal is provided between the outlet and drain pipe.

The spider plate II will be positioned far enough below bar I! to not engage the lugs 24 on the valve element 23 when the valve is moved to closed position, i. e., when the lugs straddle the bar I! and extend below it.

Thus it is seen that in large drain fittings where a large object might pass bar I! and fall into the outlet or. become lodged inthe trap, a means has been provided to prevent such accidents. At the same time due to the positioning of the rod or spider plate substantially below the bar I! the free operation oi the valve element is in no wise interfered with nor is the interposition of either of these elements such obstruction in the outlet flow passage as to hinder tree drainage. This is evident from the fact that the rod or the arms or the spider plate need be only sufllcient width or size as to withstand ordinary wear, these elements are in a protected area and are subjected only to the drainage flow.

It will be understood that the present disclosure is illustrative, and that such changes as involve only the exercise of mechanical skill may be made from the specific construction shown without departing from the purview oi. the-invention.

I claim:

A drain fitting having a body provided with an enlarged inlet and a materially reduced outlet, a strainer removably supported to depend within the enlarged portion 01' the body, said reduced end of thebody being provided with an integral valve seat, a valve having a stem lslidably and rotatably mounted in a bearing carried by the strainer, a pair of spaced arms depending from said valve, and a bar integral with the body and extending entirely across the reduced end of the body immediately below said seat, said spaced arms being adapted to cooperate with said bar, whereby in one position of rotation of the valve stem the arms will straddle said means to allow the valve to slide down to closed position in engagement with said valve seat and in said elevated position to be rotated to place the arms on said means to maintain the drain passage open.

EMIMETT M. REEDY. 

